Não informado. (1927). Annals of Internal Medicine. American College of Physicians.
Cita Chicago Style (17a ed.)Não informado. Annals of Internal Medicine. Philadelphia, Pa: American College of Physicians, 1927.
Cita MLA (8a ed.)Não informado. Annals of Internal Medicine. American College of Physicians, 1927.
Precaución: Estas citas no son 100% exactas.